Back Reaction from Trace Anomaly in RN-blackholes Evaporation
Abstract
A model is proposed to describe a transition from a charged black hole of mass M and charge Q to one of mass M and charge Q. The basic equations are derived from the non-vacuum Einstein field equations sourced by the Coulomb field and by a null scalar field with a nonvanishing trace anomaly. It is shown that the nonvanishing trace of the energy-momentum tensor prevents the formation of a naked singularity.
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